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Projector, image data converting method, and image data converting program

A technology for image data and projected images, applied in the field of image data conversion programs, can solve problems such as not being able to obtain images

Inactive Publication Date: 2007-05-09
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] In this way, when the positions of the electro-optical modulation elements 301, 302, and 303 are displaced due to the rotation around the three axes, the projected images corresponding to the respective color components 10a, 11a, and 12a do not become rectangular, and even if the correcting means disclosed in Patent Document 1 or Patent Document 2 is used, an appropriate image cannot be obtained.

Method used

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  • Projector, image data converting method, and image data converting program
  • Projector, image data converting method, and image data converting program
  • Projector, image data converting method, and image data converting program

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Embodiment approach 1

[0106] FIG. 4 is a diagram showing a schematic configuration of a projector according to Embodiment 1. FIG. The projector 1 according to Embodiment 1 is a projector including a multi-plate type electro-optic modulation device including a plurality of electro-optic modulation elements.

[0107] Generally speaking, the configuration of projector 1 according to Embodiment 1 includes image data input unit 100, image data conversion unit 200 that performs predetermined image data conversion on input image data from image data input unit 100 to generate output image data, and The output image data output by the image data conversion unit 200 modulates light from an illumination device (not shown) to generate a multi-plate electro-optical modulation device 300 that generates a plurality of image lights, and the multi-plate electro-optic modulation device 300 generates a plurality of image lights as A projection optical system (not shown) projects a plurality of projection images onto...

Embodiment approach 2

[0122] FIG. 8 is a diagram showing a schematic configuration of a projector according to Embodiment 2. FIG. Like the projector 1 of Embodiment 1, the projector 1 a of Embodiment 2 is also a projector having a multi-plate type electro-optic modulation device including a plurality of electro-optic modulation elements.

[0123] As one of the differences from Embodiment 1, an input image data storage unit 230 capable of storing input image data of one screen is provided on the output side of the color component decomposing unit 201, and each color component decomposed by the color component decomposing unit 201 The corresponding input image data is temporarily stored in the input image data storage unit 230 . In this way, in the second embodiment, the output image data storage unit 225 included in each of the image correction units 211 to 213 is unnecessary.

[0124] In addition, in the image correction sections 211 a to 213 a of the second embodiment, an input pixel position gen...

Embodiment approach 3

[0145] FIG. 12 is a diagram showing a schematic configuration of a projector according to Embodiment 3. FIG. Projector 1 b of Embodiment 3 is also a projector having a multi-plate type electro-optic modulation device including a plurality of electro-optic modulation elements, like projector 1 of Embodiment 1 and projector 1 a of Embodiment 2.

[0146] Embodiment 3 differs from Embodiments 1 and 2 in that it includes a correction parameter readjustment unit 240 capable of readjusting correction parameters. In addition, the structure of FIG. 12 is an example in which correction parameter readjustment means 240 is provided in the structure of FIG. A correction parameter re-adjustment unit 240 is provided in the structure of .

[0147] The correction parameter readjustment unit 240, as a function capable of changing the vertex positions of the input images formed on the electro-optic modulation elements 301 to 303 on the projection plane, includes, for example, a vertex position ...

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Abstract

A projector is provided with: an image data converting unit 200 that generates output image data by performing predetermined image data conversion on input image data; a multi-plate electro-optical modulator 300 having plural electro-optical modulating elements 301 to 303 each of which generates an image light by modulating a light from an illumination device according to output image data from the image data converting unit 200; and a projection system that projects plural image lights generated in the multi-plate electro-optical modulator 300 onto a projection surface as plural projection images. The image data converting unit 200 performs the image data conversion on the input image data for each electro-optical modulating elements 301 to 303 in the multi-plate electro-optical modulator 300 by taking into account positional displacement information about displacements in position among the plural projection images. It is thus possible to correct displacements in position even when the respective electro-optical modulating elements are misaligned due to rotations about the three axes.

Description

technical field [0001] The present invention relates to a projector, an image data conversion method and an image data conversion program. Background technique [0002] There has been a multi-plate or single-plate electro-optic modulation device that uses one or more transmissive or reflective types to form image lights of multiple colors simultaneously or in a time-division manner, and project images by using the image light A projector that projects onto a projection surface to display a composite multicolor image on the projection surface. [0003] There are two types of electro-optic modulation devices used in projectors: single-plate or multi-plate. The single-plate electro-optic modulation device has a single electro-optic modulation element, and outputs image light of each color component constituting a multicolor image in a time-division manner. In contrast, a multi-plate type electro-optic modulation device has a plurality of electro-optic modulation elements, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31G03B21/00G09G3/20G09G3/36H04N5/74G03B21/14
CPCH04N9/3185G03B21/14H04N9/317H04N9/3111H04N9/3197H04N9/3105H04N9/3108G03B21/00H04N9/31G09G3/20H04N5/74
Inventor 稻积满广
Owner SEIKO EPSON CORP